I have a Yakima LockNLoad platform using Timberline towers to connect to the factory rails. Seems convoluted but I wanted the maximum versatility without removing the factory rack. Since I don't need a rack very often, being able to remove when not needed was one of the goals.
Prior to purchasing the platform I ran some 60" Yakima JetStream bars, also using Timberline Towers to connect to the factory rails. The JetStream bars have slots that can accept T-bolts, whereas the Aero bars do not.
I have very little time on the platform and several months / several thousand miles on the bars.
My primary needs were to carry cargo and fuel.
Cargo: With the bars I am able to carry two Skybox easily. The Skybox type carriers will not work on the LockNLoad without a set of additional raised bars as the "claws" will not fit through the gaps in the slats. I could carry cargo bags on the platform, but I prefer the lockable and aerodynamic storage of the boxes.
Fuel: the platform is probably better for carrying fuel containers, but one or two rotopax universal plates can be attached to the bars to allow up to 8 gallons of fuel (this will take the place of one cargo box).
Noise: In my observation, the platform was noisy. Not too bad with the sunroof closed but still very noticeable. The bars were extremely quiet. I could not hear them over the AT tires.
Profile: I can fit in my garage with the bars attached. I can NOT fit in my garage with the platform attached. The bars look sleek, the platform sits quite a bit above the roof and looks kind of out of place (IMO). The bars are light, the platform is heavy.
For my needs the bars are my preference. The platform would allow more flexibility in carrying random things (awning comes to mind), but the bars can be configured to carry the things I need. With the T-nut capability of the bars, brackets can be made / adapted to fit all sorts of things.
Anyone want to buy my LockNLoad?